Amy Choate-Nielsen: Bedtime: My No. 1 enemy

In the 1950s, Tinker Air Force Base had 3 shifts for workers. Tinker had a huge
aircraft repair and assembly plant, working 24 hours a day, 7 days a week. The
day shift was from about 8 to 4, the swing shift from 4 to midnight, and the
grave yard shift from midnight to 8. Day, swing, and graveyard were probably
nick names given by the workers, but whu knows? Fleeta worked the swing shift,
which meant she would not return home and really get to bed until after 1 a.m.
or nearly 2 a.m.